Graphics, Figures & Tables ⇒ Number Alignment in Data Table

[LavaTyper]

Greetings,

I am in the process of writing my dissertation, and I need to have special formatting of numerical data within tables.

1. I need numerical entries in the second column to be aligned to the right-most digit. But I still need to have all of the numbers centered.
2. I need numerical entries in the third column to be aligned with a decimal. But I still need to have all of the numbers centered.
3. I need the titles in the first row of the table to be centered as well.

How do I modify this example?

Code: Select all

\documentclass[12pt]{article}
\usepackage{array}

\begin{document}
  \begin{table}[!htb]
    \centering
    \begin{tabular}{rcc}
      \textbf{Col1} & \textbf{Sample Size} & \textbf{Raw Data} \\ \hline
      Name 1 & 87 & 7689 \\
      Name 2 & 102 & 325 \\
      Name 3 & 93 & 109 \\
      Name 4 & 111 & 91.3 \\
      Name 5 & 55 & 67.9 \\
      Name 6 & 76 & 5.43 \\
      Name 7 & 82 & 1.83 \\
      Name 8 & 92 & .178 \\ \hline
    \end{tabular}
  \end{table}
\end{document}

How do I align numerical data in a table to the last digit and/or to the decimal? I couldn't find a script that met all of these requirements.

[hugovdberg]

Alignment of the numbers can be done with the siunitx package, which provides a S column type for numbers, I believe that does exactly what you want for points 1 and 2.
A multicolumn over a single column can be used to center a single cell.

Attached pdf was created with this file:

Code: Select all

\documentclass[12pt]{article}
\usepackage{array}
\usepackage{siunitx}
\begin{document}
  \begin{table}[!htb]
    \centering
    \begin{tabular}{rSS}
      \multicolumn{1}{c}{\textbf{Col1}} & \textbf{Sample Size} & \textbf{Raw Data} \\ \hline
      Name 1 & 87 & 7689 \\
      Name 2 & 102 & 325 \\
      Name 3 & 93 & 109 \\
      Name 4 & 111 & 91.3 \\
      Name 5 & 55 & 67.9 \\
      Name 6 & 76 & 5.43 \\
      Name 7 & 82 & 1.83 \\
      Name 8 & 92 & .178 \\ \hline
    \end{tabular}
  \end{table}
\end{document}

[LavaTyper]

Alright, but then I can't use $...$ in my table entries to write something like $1.83 \pm 0.23$. If I take out siunitx and change the tabular arguments from S to c, it works again. But then I lose the alignment. So, how can I get both to work at the same time?


Also:

If I have a big number (see revised column 2), it nudges the whole column over. How can I get the whole column to be centered again?

Code: Select all

\documentclass[12pt]{article}
\usepackage{array}
\usepackage{siunitx}

\begin{document}

\begin{table}[!htb]
\centering
\begin{tabular}{rSSc}
\multicolumn{1}{c}{\textbf{Col1}} & \textbf{Sample Size} & \textbf{Raw Data} & \textbf{Range} \\
\hline
Name 1 & 87999 & 7689 & $3.0 \pm 1.0$ \\
Name 2 & 102 & 325 & $3.0 \pm 1.2$ \\
Name 3 & 93 & 109 & $5.3 \pm 1.1$ \\
Name 4 & 111 & 91.3 & $6.2 \pm 2.2$ \\
Name 5 & 55 & 67.9 & $-0.9 \pm 0.8$ \\
Name 6 & 76 & 5.43 & $-3.0 \pm 1.0$ \\
Name 7 & 82 & 1.83 & $-2.0 \pm 0.6$ \\
Name 8 & 92 & .178 & $3.0 \pm 1.3$ \\
\hline
\end{tabular}
\end{table}

\end{document}

[hugovdberg]

That third column is actually centered on the decimal point, I'm not sure what you want it to be centered on, but you might want to take a look at the siunitx manual, section 5.14 provides a whole list of options for tabular material.
If you use siunitx and you want to format $1.83 \pm 0.23$ you can also use \num{1.83\pm0.23} in normal text, and in a S column inside a table you actually don't need the $...$ or \num{...} since siunitx automatically parses all numbers, so basically everything that's allowed inside \num{} is allowed in the table.

Edit: when you use siunitx to typeset numbers with uncertainty check the manual, by default 1.83\pm0.23 becomes 1.83(0.23), but it is all configurable to display it any way you want is.

[LavaTyper]

Interesting...

Alright, I want this:

Screenshot1.jpg (32.9 KiB) Viewed 52289 times

to look like this:

Screenshot2.jpg (30.44 KiB) Viewed 52289 times

I'm really close... but now I have an extra space between \pm and the number to the left in the last column.

Code: Select all

\documentclass[12pt]{article}
\usepackage{array}
\usepackage{siunitx}

\begin{document}

\begin{table}[h]
\centering
\begin{tabular}{
	r
	S[table-number-alignment = right]
	S[table-number-alignment = center]
	S[
		table-number-alignment = right,
		separate-uncertainty = true,
		table-figures-uncertainty = 1
	]
	}
\multicolumn{1}{c}{\textbf{Col1}} & \textbf{Sample Size} & \textbf{Raw Data} & \multicolumn{1}{c}{\textbf{Range}} \\
\hline
Name 1 & 87999 & 7689 & 3.0 \pm 1.0 \\
Name 2 & 102 & 325 & 3.0 \pm 1.2 \\
Name 3 & 93 & 109 & 5.3 \pm 1.1 \\
Name 4 & 111 & 91.3 & 6.2 \pm 2.2 \\
Name 5 & 55 & 67.9 & -0.9 \pm 0.8 \\
Name 6 & 76 & 5.43 & -3.0 \pm 1.0 \\
Name 7 & 82 & 1.83 & -2.0 \pm 0.6 \\
Name 8 & 92 & .178 & 3.0 \pm 1.3 \\
Name 9 & 76 & .103 & 4.2 \pm 1.2 \\
Name 10 & 76 & .055 & -1.1 \pm 0.2 \\
\hline
\end{tabular}
\end{table}

\end{document}

Here is what I get:

Screenshot3.jpg (37.08 KiB) Viewed 52289 times

[hugovdberg]

Apparently siunitx by default reserves 2 spaces for decimals of which you use only one. If your entire table will contain only numbers with one decimal you can add the option table-figures-decimal=1.

Code: Select all

\documentclass[12pt]{article}
\usepackage{array}
\usepackage{siunitx}

\begin{document}

\begin{table}[h]
\centering
\begin{tabular}{
        r
        S[table-number-alignment = right]
        S[table-number-alignment = center]
        S[
                table-number-alignment = right,
                separate-uncertainty = true,
                table-figures-uncertainty = 1,
                table-figures-decimal = 1
        ]
        }
\multicolumn{1}{c}{\textbf{Col1}} & \textbf{Sample Size} & \textbf{Raw Data} & \multicolumn{1}{c}{\textbf{Range}} \\
\hline
Name 1 & 87999 & 7689 & 3.0 \pm 1 \\
Name 2 & 102 & 325 & 3.0 \pm 1 \\
Name 3 & 93 & 109 & 5.3 \pm 1.1 \\
Name 4 & 111 & 91.3 & 6.2 \pm 2.2 \\
Name 5 & 55 & 67.9 & -0.9 \pm 0.8 \\
Name 6 & 76 & 5.43 & -3.0 \pm 1.0 \\
Name 7 & 82 & 1.83 & -2.0 \pm 0.6 \\
Name 8 & 92 & .178 & 3.0 \pm 1.3 \\
Name 9 & 76 & .103 & 4.2 \pm 1.2 \\
Name 10 & 76 & .055 & -1.1 \pm 0.2 \\
\hline
\end{tabular}
\end{table}

\end{document}

[LavaTyper]

This is great, I think this should do and I'll take it from here.

[LavaTyper]

Alright, help, why can't I get the values in the second column to be exactly centered? I keep specifying table-alignment center but it's off to the right a little.

Code: Select all

\documentclass[12pt]{article}
\usepackage{array}
\usepackage{siunitx}

\begin{document}

\begin{table}[h]
\centering
\addtolength{\tabcolsep}{0.1cm}
\begin{tabular}{c S[
		table-number-alignment = center,
		separate-uncertainty = true,
		table-figures-uncertainty = 1,
		table-figures-decimal = 2,
		table-figures-integer = 1
	]}
\textbf{DATA} & \textbf{MMRS} \\
\hline
A & 4.32 \pm 0.94 \\
B & 6.82 \pm 0.34 \\
C & 8.25 \pm 0.63 \\
D & 3.55 \pm 0.43 \\
E & 7.39 \pm 0.33 \\
F & 8.11 \pm 0.49 \\
\hline
\end{tabular}
\end{table}

\end{document}

[LavaTyper]

So, any suggestions?

My project has several hundred tables and I need help on this soon.

[hugovdberg]

Actually, the numbers are perfectly aligned in your example, it is the title that's not quite centered. To fix this you should enclose the title in {}, even when you already group the title in the \textbf{}. Adding the brackets prevents siunitx from parsing the contents at all, and it will apply the correct alignment to the group as it is. I'm not sure where the title is aligned at without them, but it gets the job done

Code: Select all

\documentclass[12pt]{article}
\usepackage{array}
\usepackage{siunitx}

\begin{document}

\begin{table}[h]
\centering
\addtolength{\tabcolsep}{0.1cm}
\begin{tabular}{c S[
                table-number-alignment = center,
                separate-uncertainty = true,
                table-figures-uncertainty = 1,
                table-figures-decimal = 2,
                table-figures-integer = 1
        ]}
\textbf{DATA} & {\textbf{MMRS}} \\
\hline
A & 4.32 \pm 0.94 \\
B & 6.82 \pm 0.34 \\
C & 8.25 \pm 0.63 \\
D & 3.55 \pm 0.43 \\
E & 7.39 \pm 0.33 \\
F & 8.11 \pm 0.49 \\
\hline
\end{tabular}
\end{table}

\end{document}